The angle of elevation of an aeroplane from a point on the ground is 45 degree. After 15 seconds of flight the angle changes to 30 degree.If the plane is flying at a constant height of 2500 m,find the speed of the plane.

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Rajan@2021Guru

Asked: April 3, 20212021-04-03T18:20:00+05:30 2021-04-03T18:20:00+05:30In: CBSE

The angle of elevation of an aeroplane from a point on the ground is 45 degree. After 15 seconds of flight the angle changes to 30 degree.If the plane is flying at a constant height of 2500 m,find the speed of the plane.

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One of the most important and conceptual question from trigonometry in which we have to find the speed of an aeroplane when the angle of elevation of an aeroplane from a point on the ground is 45 degree. After 15 seconds of flight the angle changes to 30 degree.If the plane is flying at a constant height of 2500 m.

RS Aggarwal, Class 10, chapter 14, question no 25.